Distributed Query Processing Over Incomplete Sampled And Locality Aware Data
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Distributed Query Processing Over Incomplete Sampled And Locality Aware Data
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Author : Bruhathi Handanahal Sundarmurthy
language : en
Publisher:
Release Date : 2018
Distributed Query Processing Over Incomplete Sampled And Locality Aware Data written by Bruhathi Handanahal Sundarmurthy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
There are numerous challenges in distributed query processing. The focus of this thesis is to provide solutions to three problem areas: (a) querying incomplete data, (b) approximate query processing (AQP) over subsets of data, and (c) high cost of shuffling data while processing distributed queries. In distributed databases, large volumes of data are generally stored partitioned across multiple nodes and a user query typically spans many nodes. As the number of nodes accessed by a query increases, the probability of nodes being unavailable also increases; additionally, the amount of data shuffled across nodes also increases, thus increasing communication costs. To provide fast responses to queries over distributed databases, AQP has been proposed. In AQP, queries are processed over a representative subset of the database and estimates of the query result are provided along with confidence bounds. While AQP provides estimates of query results in a fraction of the time required to run the query over all data, quickly obtaining representative samples for a query in a distributed setting is challenging. We first consider the problem of querying over incomplete data. In failure and straggler scenarios, parts of the database that are still available form an incomplete database. We propose m-tables, a new representation system for representing and querying over incomplete databases. Next, we consider the problem of AQP over subsets of data. We propose the ASAP (Approximation Strategies for Aggregate queries through Partitioning) framework to provide estimates and confidence bounds for aggregate queries using any subset of a database when the database is co-hash partitioned. A database is co-hash partitioned when some tables are hash partitioned, and the remaining tables are co-located through join predicates. Finally, we study the problem of high cost of shuffling data across nodes for distributed query processing. Ideally, given a query and data distribution, we want to execute the query without any communication: in this case, the query is said to be parallel-correct w.r.t. the distribution. We again consider co-hash distribution schemes and as our main result, we determine the conditions for a given query to be parallel-correct for a given co-hash distribution scheme.
Ambient Intelligence Software And Applications 12th International Symposium On Ambient Intelligence
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Author : Paulo Novais
language : en
Publisher: Springer Nature
Release Date : 2022-08-31
Ambient Intelligence Software And Applications 12th International Symposium On Ambient Intelligence written by Paulo Novais and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-31 with Technology & Engineering categories.
This book presents the latest research on Ambient Intelligence (AmI) including software and applications in different areas such as Internet of Things, Multi-Agent Systems or e-Learning, among others. AmI is a paradigm emerging from Artificial Intelligence, in which computers are used as proactive tools for assisting people with their day-to-day activities, making everyone’s lives more comfortable. Another main concern of AmI originates from the human–computer interaction domain and focuses on offering ways to interact with systems in a more natural way by means of user-friendly interfaces. The published book correspond to technical and novel works carried out by scientists conducting research within the AmI area in one of the areas mentioned above. The intended readers are those with mainly technical profiles who are already working in the area of AmI or who want to focus their current work in this area. The papers collected in this book were presented at a symposium which was jointly organized by the Universidade do Minho and University of Salamanca. The latest installment was held in Salamanca, Spain, from October 6th to 8th, 2021. The authors wish to thank the sponsors: IBM, Indra, Viewnext, Global Exchange, AEPIA, APPIA and AIR Institute.
Information Retrieval Technology
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Author : Azizah Jaafar
language : en
Publisher: Springer
Release Date : 2014-11-21
Information Retrieval Technology written by Azizah Jaafar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-21 with Computers categories.
This book constitutes the refereed proceedings of the 10th Information Retrieval Societies Conference, AIRS 2014, held in Kuching, Malaysia, in December 2014. The 42 full papers were carefully reviewed and selected from 110 submissions. Seven tracks were the focus of the AIR 2014 and they were IR models and theories; IR evaluation, user study and interactive IR; web IR, scalability and IR in social media; multimedia IR; natural language processing for IR; machine learning and data mining for IR and IR applications.
Main Memory Database Systems
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Author : Frans Faerber
language : en
Publisher: Foundations and Trends in Databases
Release Date : 2017-07-20
Main Memory Database Systems written by Frans Faerber and has been published by Foundations and Trends in Databases this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-20 with Probabilistic databases categories.
With growing memory sizes and memory prices dropping by a factor of 10 every 5 years, data having a "primary home" in memory is now a reality. Main-memory databases eschew many of the traditional architectural pillars of relational database systems that optimized for disk-resident data. The result of these memory-optimized designs are systems that feature several innovative approaches to fundamental issues (e.g., concurrency control, query processing) that achieve orders of magnitude performance improvements over traditional designs. This monograph provides an overview of recent developments in main-memory database systems. It covers five main issues and architectural choices that need to be made when building a high performance main-memory optimized database: data organization and storage, indexing, concurrency control, durability and recovery techniques, and query processing and compilation. The monograph focuses on four commercial and research systems: H-Store/VoltDB, Hekaton, HyPer, and SAPHANA. These systems are diverse in their design choices and form a representative sample of the state of the art in main-memory database systems. It also covers other commercial and academic systems, along with current and future research trends.
Pervasive Computing And Networking
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Author : Mohammad S. Obaidat
language : en
Publisher: John Wiley & Sons
Release Date : 2011-06-09
Pervasive Computing And Networking written by Mohammad S. Obaidat and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-09 with Technology & Engineering categories.
This book presents state-of-the-art research on architectures, algorithms, protocols and applications in pervasive computing and networks With the widespread availability of wireless and mobile networking technologies and the expected convergence of ubiquitous computing with these emerging technologies in the near future, pervasive computing and networking research and applications are among the hot topics on the agenda of researchers working on the next generation of mobile communications and networks. This book provides a comprehensive guide to selected topics, both ongoing and emerging, in pervasive computing and networking. It contains contributions from high profile researchers and is edited by leading experts in this field. The main topics covered in the book include pervasive computing and systems, pervasive networking security, and pervasive networking and communication. Key Features: Discusses existing and emerging communications and computing models, design architectures, mobile and pervasive wireless applications, technology and research challenges in pervasive computing systems, networking and communications Provides detailed discussions of key research challenges and open research issues in the field of autonomic computing and networking Offers information on existing experimental studies including case studies, implementation test-beds in industry and academia Includes a set of PowerPoint slides for each chapter for instructors adopting it as a textbook Pervasive Computing and Networking will be an ideal reference for practitioners and researchers working in the areas of communication networking and pervasive computing and networking. It also serves as an excellent textbook for graduate and senior undergraduate courses in computer science, computer engineering, electrical engineering, software engineering, and information engineering and science.
Claudio Moraga A Passion For Multi Valued Logic And Soft Computing
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Author : Rudolf Seising
language : en
Publisher: Springer
Release Date : 2016-10-20
Claudio Moraga A Passion For Multi Valued Logic And Soft Computing written by Rudolf Seising and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-20 with Computers categories.
The book is an authoritative collection of contributions by leading experts on the topics of fuzzy logic, multi-valued logic and neural network. Originally written as an homage to Claudio Moraga, seen by his colleagues as an example of concentration, discipline and passion for science, the book also represents a timely reference guide for advance students and researchers in the field of soft computing, and multiple-valued logic.
Principles Of Distributed Database Systems
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Author : M. Tamer Özsu
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-02-24
Principles Of Distributed Database Systems written by M. Tamer Özsu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-24 with Computers categories.
This third edition of a classic textbook can be used to teach at the senior undergraduate and graduate levels. The material concentrates on fundamental theories as well as techniques and algorithms. The advent of the Internet and the World Wide Web, and, more recently, the emergence of cloud computing and streaming data applications, has forced a renewal of interest in distributed and parallel data management, while, at the same time, requiring a rethinking of some of the traditional techniques. This book covers the breadth and depth of this re-emerging field. The coverage consists of two parts. The first part discusses the fundamental principles of distributed data management and includes distribution design, data integration, distributed query processing and optimization, distributed transaction management, and replication. The second part focuses on more advanced topics and includes discussion of parallel database systems, distributed object management, peer-to-peer data management, web data management, data stream systems, and cloud computing. New in this Edition: • New chapters, covering database replication, database integration, multidatabase query processing, peer-to-peer data management, and web data management. • Coverage of emerging topics such as data streams and cloud computing • Extensive revisions and updates based on years of class testing and feedback Ancillary teaching materials are available.
Readings In Database Systems
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Author : Joseph M. Hellerstein
language : en
Publisher: MIT Press
Release Date : 2005
Readings In Database Systems written by Joseph M. Hellerstein and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Computers categories.
The latest edition of a popular text and reference on database research, with substantial new material and revision; covers classical literature and recent hot topics. Lessons from database research have been applied in academic fields ranging from bioinformatics to next-generation Internet architecture and in industrial uses including Web-based e-commerce and search engines. The core ideas in the field have become increasingly influential. This text provides both students and professionals with a grounding in database research and a technical context for understanding recent innovations in the field. The readings included treat the most important issues in the database area--the basic material for any DBMS professional. This fourth edition has been substantially updated and revised, with 21 of the 48 papers new to the edition, four of them published for the first time. Many of the sections have been newly organized, and each section includes a new or substantially revised introduction that discusses the context, motivation, and controversies in a particular area, placing it in the broader perspective of database research. Two introductory articles, never before published, provide an organized, current introduction to basic knowledge of the field; one discusses the history of data models and query languages and the other offers an architectural overview of a database system. The remaining articles range from the classical literature on database research to treatments of current hot topics, including a paper on search engine architecture and a paper on application servers, both written expressly for this edition. The result is a collection of papers that are seminal and also accessible to a reader who has a basic familiarity with database systems.
Data Intensive Text Processing With Mapreduce
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Author : Jimmy Lin
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2010-10-10
Data Intensive Text Processing With Mapreduce written by Jimmy Lin and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-10 with Computers categories.
Our world is being revolutionized by data-driven methods: access to large amounts of data has generated new insights and opened exciting new opportunities in commerce, science, and computing applications. Processing the enormous quantities of data necessary for these advances requires large clusters, making distributed computing paradigms more crucial than ever. MapReduce is a programming model for expressing distributed computations on massive datasets and an execution framework for large-scale data processing on clusters of commodity servers. The programming model provides an easy-to-understand abstraction for designing scalable algorithms, while the execution framework transparently handles many system-level details, ranging from scheduling to synchronization to fault tolerance. This book focuses on MapReduce algorithm design, with an emphasis on text processing algorithms common in natural language processing, information retrieval, and machine learning. We introduce the notion of MapReduce design patterns, which represent general reusable solutions to commonly occurring problems across a variety of problem domains. This book not only intends to help the reader "think in MapReduce", but also discusses limitations of the programming model as well. Table of Contents: Introduction / MapReduce Basics / MapReduce Algorithm Design / Inverted Indexing for Text Retrieval / Graph Algorithms / EM Algorithms for Text Processing / Closing Remarks
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2008
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Dissertations, Academic categories.